CN115976318A - Shaft part heat treatment process and tool thereof - Google Patents
Shaft part heat treatment process and tool thereof Download PDFInfo
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- CN115976318A CN115976318A CN202211556471.1A CN202211556471A CN115976318A CN 115976318 A CN115976318 A CN 115976318A CN 202211556471 A CN202211556471 A CN 202211556471A CN 115976318 A CN115976318 A CN 115976318A
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- 238000000034 method Methods 0.000 title claims abstract description 51
- 230000008569 process Effects 0.000 title claims abstract description 50
- 238000010438 heat treatment Methods 0.000 title claims abstract description 41
- 230000000171 quenching effect Effects 0.000 claims abstract description 79
- 238000010791 quenching Methods 0.000 claims abstract description 71
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 230000033001 locomotion Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 229910001563 bainite Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
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- 238000005096 rolling process Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The invention belongs to the technical field of heat treatment, and particularly relates to a heat treatment process and a tool for shaft parts. The heat treatment process of the shaft part comprises the steps of firstly moving the shaft part above a quenching medium, then enabling the shaft part to enter the quenching medium in a vertical state, enabling the shaft part to move in a horizontal direction in the process that the shaft part vertically enters the quenching medium, and after cooling for a set time, taking the shaft part out of the quenching medium. The tool for the heat treatment process of the shaft parts comprises an installation frame, a vertical driving mechanism and a horizontal driving mechanism, wherein the horizontal driving mechanism is used for driving the installation frame to horizontally move when the vertical driving mechanism works. The shaft parts processed by the heat treatment process and the tool thereof have the advantages that the cooling speed of each shaft section is relatively close, so that the quenching consistency of all positions of the shaft parts is relatively good, and the finished product quality of the shaft parts is improved.
Description
Technical Field
The invention belongs to the technical field of heat treatment, and particularly relates to a heat treatment process and a tool for shaft parts.
Background
The shaft part is one of typical parts frequently encountered in hardware fittings, is mainly used for supporting transmission parts, transmitting torque and bearing load, and can be generally divided into three types, namely an optical axis, a stepped axis and a special-shaped axis according to different structural forms of the shaft part; or divided into a solid shaft, a hollow shaft, etc. Heat treatment refers to a hot metal working process in which a material is heated, held and cooled in the solid state to achieve a desired texture and properties.
Quenching is a heat treatment process in which steel is heated to a temperature above the critical temperature, held for a certain period of time, and then cooled at a rate greater than the critical cooling rate to obtain an unbalanced structure mainly composed of martensite (or bainite or single-phase austenite is obtained as necessary). Quenching is the most widely used work technology in steel heat treatment technology.
When a shaft part is quenched, the heated part is usually placed in a quenching medium such as water or oil, but because the shaft part is relatively long, if the shaft part is fixed and then placed in a horizontal posture in water, the local position of the shaft is distorted from the axis, and the quality of a finished product is affected. If adopt vertical gesture to put into aquatic then can not lead to local position to produce the distortion of deviating from the axis, but because axle type part is longer when placing with vertical gesture, can appear partly earlier get into the aquatic, get into the aquatic behind another part, this leads to the part that gets into earlier the aquatic can make water warm up, and the water that the part that then comes into contacted is for the water after the intensification, and this can lead to the quenching effect difference of axle type part different positions, leads to the finished product quality relatively poor.
Disclosure of Invention
Therefore, it is necessary to provide a heat treatment process for shaft parts to solve the problem of poor quenching effect and poor quality of finished products when the shaft parts are quenched by the heat treatment process in the prior art, and to provide a tool for the heat treatment process for shaft parts to solve the problem of poor quality of shaft parts quenched by the tool in the prior art.
The above purpose is realized by the following technical scheme:
a shaft part heat treatment process comprises the following steps:
s100: moving the shaft-like part above the quenching medium;
s200: the shaft parts enter the quenching medium in a vertical state, and move along the horizontal direction in the process that the shaft parts vertically enter the quenching medium;
s300: and after cooling for a set time, taking the shaft part out of the quenching medium.
Further, in step S200, the shaft-like parts are moved in one direction in the horizontal direction.
Further, in step S200, when a plurality of shaft-like parts are machined, the plurality of shaft-like parts are sequentially arranged in parallel in a single direction, and the plurality of shaft-like parts are horizontally moved in a direction perpendicular to the parallel arrangement.
Further, in step S200, the shaft-like parts are rotated while being horizontally moved.
Further, the shaft-like part is clamped by a clamp having a plurality of jaws, and the distance between clamping surfaces of the plurality of jaws is adjusted by the clamp according to the temperature of the clamped position of the shaft-like part to clamp the shaft-like part.
The beneficial effects of the invention are: the invention relates to a heat treatment process for shaft parts, which comprises the steps of moving a shaft part to be quenched above a quenching medium, enabling the shaft part to enter the quenching medium in a vertical state, gradually submerging the shaft part with the quenching medium, and quenching the shaft part.
The utility model provides a frock of axle type part heat treatment process, includes:
the mounting frame is used for mounting the shaft parts;
the vertical driving mechanism is used for driving the shaft parts arranged on the mounting rack to extend into the quenching medium in a vertical state;
and the horizontal driving mechanism is used for driving the mounting frame to horizontally move when the vertical driving mechanism works.
Further, vertical actuating mechanism is including setting up the telescopic link between horizontal drive mechanism and mounting bracket, and the telescopic link can drive the mounting bracket and remove in the vertical direction, the stiff end and the horizontal drive mechanism fixed connection of telescopic link, the output and the mounting bracket fixed connection of telescopic link.
Furthermore, the horizontal driving mechanism comprises a driving motor, a translation gear, a rack and a horizontal guide rail, the horizontal guide rail is used for being arranged on a container for containing the quenching medium, the rack is fixed on the horizontal guide rail, the translation gear is meshed with the rack, and the driving motor can drive the translation gear to roll along the rack.
Further, the tool for the heat treatment process of the shaft parts further comprises a clamp and a rotation driving mechanism, the clamp is used for fixing the shaft parts, the clamp is rotatably arranged on the mounting frame, and the rotation driving mechanism is used for driving the clamp to rotate when the vertical driving mechanism works so as to enable the shaft parts to rotate.
Further, the clamp is provided with a plurality of clamping jaws and further comprises a temperature sensor used for sensing the temperature of the shaft part, and the clamp can adjust the distance between the clamping surfaces of the plurality of clamping jaws according to the temperature of the clamped position of the shaft part so as to clamp the shaft part.
The beneficial effects of the invention are: the tool for the heat treatment process of the shaft parts comprises a mounting frame, a horizontal driving mechanism, a vertical driving mechanism, a quenching medium, a horizontal driving mechanism, a vertical driving mechanism, a horizontal driving mechanism, a quenching medium and a cooling medium.
Drawings
FIG. 1 is a block flow diagram of one embodiment of a heat treatment process for shaft parts according to the present invention;
fig. 2 is a schematic structural diagram of the tool for the heat treatment process of the shaft part according to the embodiment of the invention when the shaft part is installed;
FIG. 3 is a schematic view of the structure of the carrying container and the horizontal guide rail of FIG. 2;
fig. 4 is a partially enlarged view of a point a in fig. 3;
FIG. 5 is a schematic view of the structure of FIG. 2 with the load carrying container and horizontal rails removed;
FIG. 6 is a schematic view of the structure of FIG. 5 with shaft parts, clamps and a second sprocket removed;
fig. 7 is a schematic structural view of the jig in fig. 5.
Wherein:
100. a mounting frame; 110. a first mounting plate; 120. a second mounting plate; 130. a connecting rod; 140. mounting holes; 200. a container is loaded; 300. a telescopic rod; 410. a drive motor; 420. a translation gear; 430. a rack; 440. a horizontal guide rail; 441. mounting grooves; 443. a motor support surface; 500. a clamp; 510. a shaft section; 520. a turntable; 530. a claw; 532. clamping the telescopic section; 534. cushion blocks; 540. a temperature sensor; 610. a second sprocket; 700. shaft parts.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by the following embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The numbering of the components themselves, such as "first", "second", etc., is used herein only to distinguish between the objects depicted and not to have any sequential or technical meaning. The term "connected" and "coupled" as used herein includes both direct and indirect connections (couplings), unless otherwise specified. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, a heat treatment process for a shaft part according to an embodiment of the first aspect of the present invention is described.
The shaft part heat treatment process comprises the following steps:
s100: moving the shaft parts above the quenching medium;
s200: the shaft parts enter the quenching medium in a vertical state, and move along the horizontal direction in the process that the shaft parts vertically enter the quenching medium;
s300: and after cooling for a set time, taking the shaft part out of the quenching medium.
The heat treatment process for the shaft parts comprises the steps of firstly moving the shaft parts to be quenched above a quenching medium, wherein the quenching medium can be saline, water or mineral oil according to actual needs, then enabling the shaft parts to enter the quenching medium in a vertical state, enabling the quenching medium to gradually submerge the shaft parts, and quenching the shaft parts.
The vertical moving speed and the horizontal moving speed of the shaft parts can be specifically set according to the requirement of the quenching speed of the shaft parts, so that the quenching effect is further improved.
In one embodiment, in step S200, the shaft-like part is moved in a single direction along the horizontal direction, so that the quenching medium contacted by each shaft section of the shaft-like part is not easily affected by other heated quenching media, thereby further improving the quenching consistency of each position of the shaft-like part, and in addition, the difficulty in manufacturing the tool for controlling the movement of the shaft-like part is also conveniently reduced. In other embodiments, the shaft part can be moved in the set distance and then changed in the moving direction, and only the shaft part needs to be prevented from passing through the moved area again, so that the size requirement of the container for containing the quenching medium can be reduced.
In one embodiment, in step S200, when a plurality of shaft parts are machined, the shaft parts are sequentially arranged in parallel in a single direction, and the shaft parts are horizontally moved in a direction perpendicular to the direction in which the shaft parts are arranged in parallel. When a plurality of shaft parts are machined at one time, the arrangement mode can ensure that the moving paths of all the shaft parts are not interfered with each other, so that all the shaft parts have good quenching effect. Of course, an appropriate distance needs to be ensured between two adjacent shaft parts, and the distance can be determined according to the diameters of the shaft parts and the container for bearing the quenching medium, as long as it is ensured that the quenching medium between the two adjacent shaft parts does not influence the quenching effect due to the superposition of absorbed heat.
In one embodiment, in step S200, the shaft-like part is rotated during the horizontal movement of the shaft-like part. On the moving path of the shaft part, the temperature of the quenching medium in the front side surface area of the shaft part is slightly lower than that of the quenching medium in the rear side surface area of the shaft part, and the shaft part rotates in the horizontal moving process, so that the inconsistency of temperature reduction in the circumferential direction of the shaft part is avoided, and the consistency of quenching effects of the shaft part in the circumferential direction is ensured.
In one embodiment, a shaft part is clamped by a clamp with a plurality of clamping jaws, and the clamp adjusts the distance between clamping surfaces of the plurality of clamping jaws according to the temperature of the clamped position of the shaft part so as to clamp the shaft part. Utilize anchor clamps to come centre gripping axle type part to make axle type part can be in quenching medium steady removal, simultaneously, because the reason of expend with heat and contract with cold, axle type part can reduce at the in-process radial dimension of cooling, thereby can lead to anchor clamps can not press from both sides tight axle type part, the resistance of quenching medium again can not be pressed from both sides tightly because of axle type part when removing and make axle type part rock, and then lead to the distortion of axle type part. In order to avoid the situation, the clamp can adjust the distance between the clamping surfaces of the plurality of clamping jaws according to the temperature of the clamped position of the shaft part, the more the temperature is reduced, the smaller the distance between the clamping surfaces of the plurality of clamping jaws is, so that the shaft part can be always in a clamped state, the clamped state only needs to ensure that the shaft part is not easy to shake, and the shaft part is not easy to distort.
Referring to fig. 2 to 7, a tool for a heat treatment process of a shaft part according to an embodiment of the first aspect of the present invention is described.
The tool for the heat treatment process of the shaft parts is used in the quenching process of the shaft parts 700 and comprises an installation frame 100, a vertical driving mechanism and a horizontal driving mechanism, wherein the installation frame 100 is used for installing the shaft parts 700 to be quenched, the vertical driving mechanism is used for driving the shaft parts 700 installed on the installation frame 100 to extend into a quenching medium in a vertical state, and the horizontal driving mechanism is used for driving the installation frame 100 to horizontally move when the vertical driving mechanism works.
Wherein the quenching medium is placed in the holding container 200. In this embodiment, the holding container 200 is a rectangular box, the size of the box can be set reasonably according to the size and number of the shaft parts 700, and in other embodiments, the holding container can be set into other shapes according to the requirement. During operation, the shaft part 700 is mounted on the mounting frame 100, the horizontal driving mechanism drives the mounting frame 100 to move to a position right above the quenching medium, the vertical driving mechanism drives the shaft part 700 to extend into the quenching medium in a vertical state, in the process, the horizontal driving mechanism still drives the mounting frame 100 to move horizontally, the quenching medium can gradually submerge the shaft part 700, the shaft part 700 is quenched, heat of the shaft part 700 is transferred to the quenching medium contacting with the shaft part 700, the quenching medium is heated, meanwhile, the shaft part 700 also moves in the horizontal direction, and the position of the shaft part 700 in the quenching medium can be changed due to horizontal movement, so that the quenching medium contacting with the shaft section 510 of the shaft part 700 newly entering into the quenching medium is not heated in the vertical direction and is at a lower temperature, the cooling speed of each shaft section 510 is relatively close, the cooling time of the shaft section 510 is shortened, the consistency of quenching at each position of the shaft part 700 is better, and the quality of a finished product of the shaft part 700 is improved.
In one embodiment, the vertical driving mechanism includes a telescopic rod 300 disposed between the horizontal driving mechanism and the mounting frame 100, the telescopic rod 300 can drive the mounting frame 100 to move in the vertical direction, a fixed end of the telescopic rod 300 is fixedly connected to the horizontal driving mechanism, and an output end of the telescopic rod 300 is fixedly connected to the mounting frame 100. Specifically, the telescopic rod 300 may be an electric push rod or a hydraulic telescopic rod 300, and the telescopic rod 300 is controlled to extend or shorten to drive the mounting frame 100 to descend or ascend, so as to drive the shaft-like part 700 on the mounting frame 100 to move in the vertical direction, so that the shaft-like part 700 can enter the quenching medium or leave the quenching medium.
The mounting frame 100 includes a first mounting plate 110, a second mounting plate 120, and two connecting rods 130 for connecting the first mounting plate 110 and the second mounting plate 120, the shaft-like part 700 is mounted between the first mounting plate 110 and the second mounting plate 120, and the output end of the telescopic rod 300 is fixedly connected to the lower bottom surface of the first mounting plate 110, in order to be able to adapt to shaft-like parts 700 with different length dimensions, the connecting rods 130 are also telescopic, specifically, an electric push rod may be used as the connecting rods 130, and in other embodiments, a hydraulic telescopic rod may also be used as the connecting rods.
In one embodiment, the horizontal driving mechanism comprises a driving motor 410, a translation gear 420, a rack 430 and a horizontal guide rail 440, the horizontal guide rail 440 is used for being arranged on a containing container 200 containing quenching medium, the rack 430 is fixed on the horizontal guide rail 440, the translation gear 420 is meshed with the rack 430, the horizontal guide rail 440 is provided with a mounting groove 441 and a motor supporting surface 443, the rack 430 is fixed in the mounting groove 441 of the horizontal guide rail 440, the mounting groove 441 can also accommodate the translation gear 420, the translation gear 420 can be meshed with the rack 430, the driving motor 410 can drive the translation gear 420 to roll along the rack 430, the motor supporting surface 443 can support the driving motor 410 and can slide the driving motor 410, the fixed end of the telescopic rod 300 is fixed on the outer surface of the driving motor 410, and the number of the horizontal guide rail 440, the driving motor 410, the translation gear 420 and the rack 430 are two. When the shaft part 700 is used, the translation gear 420 rolls along the rack 430 under the driving of the driving motor 410, in the process, the translation gear 420 drives the driving motor 410 to move horizontally, and the driving motor 410 drives the mounting frame 100 to move horizontally through the telescopic rod 300, so that the shaft part 700 moves horizontally. It should be noted that the contact surface between the motor supporting surface 443 and the driving motor 410 is smooth, and the frictional resistance between the two is small. In other embodiments, in order to further reduce the frictional resistance, the outer circumferential surface of the driving motor may be provided with rollers capable of rolling on the motor support surface.
In other embodiments, the horizontal driving mechanism may also be an electric push rod fixed on a container for holding the quenching medium, and the output end of the electric push rod or the hydraulic telescopic rod can drive the end of the telescopic rod to move horizontally, so as to realize the horizontal movement of the mounting rack. In other embodiments, the horizontal driving mechanism can also be a hydraulic telescopic rod or a pneumatic telescopic rod.
In one embodiment, the tooling for the heat treatment process of the shaft parts further comprises a clamp 500 and a rotation driving mechanism, the clamp 500 is used for fixing the shaft parts 700, the clamp 500 is rotatably arranged on the mounting frame 100, the rotation driving mechanism is used for driving the clamp 500 to rotate when the vertical driving mechanism works so as to enable the shaft parts 700 to rotate, the temperature of the quenching medium in the front side surface area of the shaft parts 700 is slightly lower than that of the quenching medium in the rear side surface area of the shaft parts 700 on the moving path of the shaft parts 700, and the shaft parts 700 rotate in the horizontal moving process, so that the inconsistency of temperature reduction of the shaft parts 700 in the circumferential direction can be avoided, and the consistency of the quenching effect of the shaft parts 700 in the circumferential direction can be ensured.
Specifically, the clamp 500 includes a rotating shaft section 510, a turntable 520 and a plurality of jaws 530 arranged in the turntable 520, the shaft section 510 is fixed on the outer end face of the turntable 520, an installation cavity is arranged in the turntable 520, the jaws 530 are arranged on the inner wall face of the installation cavity of the turntable 520, the jaws 530 include a clamping telescopic section 532 and a cushion block 534 fixed on the extending end of the clamping telescopic section 532, the clamping telescopic section 532 can be an electric push rod or a hydraulic telescopic rod 300, the clamping telescopic section 532 can adapt to shaft parts 700 with different diameters through telescoping, and the cushion block 534 can avoid clamping the outer peripheral face of the shaft part 700. The first and second mounting plates 110 and 120 are provided with a plurality of mounting holes 140 spaced apart along the length thereof, and the shaft segments 510 of the clamp 500 are rotatably mounted in the mounting holes 140 through bearings. In this embodiment, there are four jaws 530 in each clamp 500, and in other embodiments there may be three jaws in each clamp.
The rotation driving mechanism is arranged on the first mounting plate 110, and comprises an output motor, a first chain wheel, a transmission chain (not shown in the drawings of the specification) and a second chain wheel 610, wherein the output motor is fixed on the first mounting plate 110, the first chain wheel is fixedly connected with an output shaft of the output motor, the output shaft of the output motor can drive the first chain wheel to rotate, the second chain wheel 610 is provided with a plurality of chain wheels, and is in one-to-one correspondence with the number of the clamps 500 on the first mounting plate 110, the second chain wheel 610 is fixed on the part, extending out of the mounting hole 140, of the shaft section 510, the first chain wheel and the second chain wheel 610 are driven by the transmission chain, the second chain wheel 610 can drive the clamps 500 to rotate, and then the clamps 500 can drive the shaft part 700 to rotate.
In one embodiment, the fixture 500 further includes a temperature sensor 540 for sensing the temperature of the shaft part 700, the temperature sensor 540 is fixed on the bottom surface of the mounting cavity of the turntable 520, when in use, the end of the shaft part 700 will contact with the temperature sensor 540, the temperature data sensed by the temperature sensor 540 will be sent to the fixture 500, and the fixture 500 can adjust the telescopic length of the clamping telescopic section 532 of the jaws 530 according to the temperature of the clamped position of the shaft part 700, so as to adjust the distance between the clamping surfaces of the jaws 530 to clamp the shaft part 700. The more the temperature is reduced, the smaller the distance between the clamping surfaces of the plurality of clamping claws 530 is, so that the shaft part 700 can be always in a clamped state, the shaft part 700 is not prone to shaking due to cold contraction and resistance of a quenching medium, and the shaft part 700 is not prone to distortion. It should be noted that, in the above-mentioned clamping state, it is only necessary to ensure that the shaft-like part 700 does not shake, so as to avoid the outer surface of the shaft-like part 700 from being damaged due to over-tightening of the clamp, and meanwhile, the housing of the temperature sensor 540 has certain elasticity, so as to adapt to the axial deformation of the shaft-like part 700. In addition, when the temperature detected by the temperature sensor 540 is lower than the set temperature, the clamp 500 adjusts the telescopic length of the jaws 530 according to the temperature fed back by the temperature sensor 540.
In one embodiment, the tool for the heat treatment process of the shaft part can apply the heat treatment process of the shaft part provided by the embodiment of the first aspect of the invention.
The working process of the tool for the heat treatment process of the shaft part in the embodiment of the invention is as follows:
first, a plurality of shaft-like parts 700 are sequentially fixed to the mounting frame 100, so that the clamps 500 on the first mounting plate 110 and the second mounting plate 120 respectively clamp two ends of the shaft-like part 700, and the ends of the shaft-like part 700 are in contact with the corresponding temperature sensors 540. Then, the driving motor 410 is started, when the mounting frame 100 moves to a position right above the quenching medium under the driving of the driving motor 410, the telescopic rod 300 is started, so that the telescopic rod 300 is shortened, the shaft part 700 moves downwards to start to enter the quenching medium, meanwhile, the output motor is started, under the driving of the output motor, the transmission chain drives the shaft part 700 to rotate through the second chain wheel 610, at the moment, the shaft part 700 has three partial motions, namely, the motion in the horizontal direction, the vertical downward motion and the rotation, because the horizontal motion can change the position of the shaft part 700 in the quenching medium, in the vertical direction, the quenching medium contacted with the shaft section 510 of the shaft part 700 newly entering the quenching medium is not heated and is at a lower temperature, so that the cooling speed of each shaft section 510 is relatively close, the cooling time of the shaft section 510 is shortened, and the quenching consistency of each position of the shaft part 700 is relatively good, and the finished product quality of the shaft part 700 is improved; by rotating the shaft parts 700 in the horizontal movement process, the inconsistency of cooling in the circumferential direction of the shaft parts 700 is avoided, the consistency of quenching effects of the shaft parts 700 in the circumferential direction is ensured, and the quality of finished products of the shaft parts 700 is further improved.
In addition, in the process of reducing the temperature of the shaft part 700, the radial dimension can be reduced due to cooling, the temperature sensor 540 sends the detected temperature to the clamp 500, the clamp 500 can adjust the stretching length of the clamping stretching section 532 of the clamping jaws 530 according to the temperature of the clamped position of the shaft part 700, so that the distance between the clamping surfaces of the clamping jaws 530 is adjusted to clamp the shaft part 700, the shaft part 700 can be always in the clamped state, the shaft part 700 is not prone to shaking, and the shaft part 700 is not prone to distortion.
All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The heat treatment process of the shaft part is characterized by comprising the following steps of:
s100: moving the shaft-like part above the quenching medium;
s200: enabling the shaft parts to enter a quenching medium in a vertical state, and enabling the shaft parts to move along the horizontal direction in the process that the shaft parts vertically enter the quenching medium;
s300: and after cooling for a set time, taking the shaft part out of the quenching medium.
2. The heat treatment process for shaft parts according to claim 1, wherein in step S200, the shaft parts are moved in a single direction in the horizontal direction.
3. The heat treatment process for shaft parts according to claim 1, wherein in step S200, when the plurality of shaft parts are processed, the plurality of shaft parts are arranged side by side in sequence in a single direction, and the plurality of shaft parts are horizontally moved in a direction perpendicular to the direction of the parallel arrangement.
4. The heat treatment process for shaft parts according to claim 1, wherein in step S200, the shaft parts are rotated during the horizontal movement of the shaft parts.
5. The heat treatment process for shaft parts according to claim 1, wherein the shaft parts are clamped by a clamp having a plurality of jaws, and the distance between clamping surfaces of the jaws is adjusted by the clamp according to the temperature of the clamped position of the shaft parts to clamp the shaft parts.
6. The utility model provides a frock of axle type part heat treatment process which characterized in that includes:
the mounting rack is used for mounting the shaft parts;
the vertical driving mechanism is used for driving the shaft parts arranged on the mounting rack to extend into the quenching medium in a vertical state;
and the horizontal driving mechanism is used for driving the mounting frame to horizontally move when the vertical driving mechanism works.
7. The tool for the heat treatment process of the shaft parts according to claim 6, wherein the vertical driving mechanism comprises a telescopic rod arranged between the horizontal driving mechanism and the mounting frame, the telescopic rod can drive the mounting frame to move in the vertical direction, a fixed end of the telescopic rod is fixedly connected with the horizontal driving mechanism, and an output end of the telescopic rod is fixedly connected with the mounting frame.
8. The tooling for the heat treatment process of the shaft parts according to claim 6, wherein the horizontal driving mechanism comprises a driving motor, a translation gear, a rack and a horizontal guide rail, the horizontal guide rail is arranged on a container for containing the quenching medium, the rack is fixed on the horizontal guide rail, the translation gear is meshed with the rack, and the driving motor can drive the translation gear to roll along the rack.
9. The tooling for the shaft part heat treatment process according to claim 6, further comprising a clamp and a rotation driving mechanism, wherein the clamp is used for fixing the shaft part, the clamp is rotatably arranged on the mounting rack, and the rotation driving mechanism is used for driving the clamp to rotate when the vertical driving mechanism works so as to rotate the shaft part.
10. The tooling for the heat treatment process of the shaft parts according to claim 9, wherein the fixture is provided with a plurality of jaws, the fixture further comprises a temperature sensor for sensing the temperature of the shaft parts, and the fixture can adjust the distance between the clamping surfaces of the jaws according to the temperature of the clamped position of the shaft parts so as to clamp the shaft parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211556471.1A CN115976318B (en) | 2023-01-31 | 2023-01-31 | Heat treatment process and tool for shaft parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211556471.1A CN115976318B (en) | 2023-01-31 | 2023-01-31 | Heat treatment process and tool for shaft parts |
Publications (2)
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| CN115976318B CN115976318B (en) | 2023-11-07 |
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|---|---|---|---|---|
| US4444376A (en) * | 1981-07-20 | 1984-04-24 | Nippon Kokan Kabushiki Kaisha | Multi-pipe type quenching apparatus |
| CN201581111U (en) * | 2010-01-08 | 2010-09-15 | 上海北特金属制品有限公司 | Whole bar quenching and cooling device |
| CN106755909A (en) * | 2017-01-20 | 2017-05-31 | 武汉恒精电热设备有限公司 | Shaft-like workpiece automates quenching machine |
| CN107739792A (en) * | 2017-12-01 | 2018-02-27 | 吴浪 | A kind of mechanical axial workpiece quenching unit |
| CN210287429U (en) * | 2019-08-02 | 2020-04-10 | 江苏华久特钢工具有限公司 | Quenching device for shaft parts |
| CN211235352U (en) * | 2019-11-25 | 2020-08-11 | 无锡库帕油品有限公司 | Quenching medium cooling capacity tester |
| CN215440602U (en) * | 2021-07-09 | 2022-01-07 | 溧阳市中豪热处理有限公司 | Axle type part guenching unit |
| CN217202841U (en) * | 2021-12-28 | 2022-08-16 | 台州市索立机械有限公司 | Automatic turntable for high-frequency quenching machine tool |
| CN217536085U (en) * | 2022-03-01 | 2022-10-04 | 精美铝业有限公司 | Quenching cooling tank |
-
2023
- 2023-01-31 CN CN202211556471.1A patent/CN115976318B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4444376A (en) * | 1981-07-20 | 1984-04-24 | Nippon Kokan Kabushiki Kaisha | Multi-pipe type quenching apparatus |
| CN201581111U (en) * | 2010-01-08 | 2010-09-15 | 上海北特金属制品有限公司 | Whole bar quenching and cooling device |
| CN106755909A (en) * | 2017-01-20 | 2017-05-31 | 武汉恒精电热设备有限公司 | Shaft-like workpiece automates quenching machine |
| CN107739792A (en) * | 2017-12-01 | 2018-02-27 | 吴浪 | A kind of mechanical axial workpiece quenching unit |
| CN210287429U (en) * | 2019-08-02 | 2020-04-10 | 江苏华久特钢工具有限公司 | Quenching device for shaft parts |
| CN211235352U (en) * | 2019-11-25 | 2020-08-11 | 无锡库帕油品有限公司 | Quenching medium cooling capacity tester |
| CN215440602U (en) * | 2021-07-09 | 2022-01-07 | 溧阳市中豪热处理有限公司 | Axle type part guenching unit |
| CN217202841U (en) * | 2021-12-28 | 2022-08-16 | 台州市索立机械有限公司 | Automatic turntable for high-frequency quenching machine tool |
| CN217536085U (en) * | 2022-03-01 | 2022-10-04 | 精美铝业有限公司 | Quenching cooling tank |
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| CN115976318B (en) | 2023-11-07 |
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